Donald Trump earned 37 of 52 Missouri delegates to the Republican National Convention with his narrow victory in the March primary, but he won’t have that level of support if he fails to clinch the nomination on the first ballot.

Missouri hosted eight congressional district conventions Saturday, selecting 24 of the delegates for the convention — three from each district. The rest will be chosen at a statewide convention in three weeks.

A slate of supporters of Sen. Ted Cruz was picked to represent Missouri’s 2nd District, even though Trump carried the St. Louis-area district in the March primary. Results of the other districts were not immediately available.

The 37 Trump delegates to the national convention are bound to vote for him on the first ballot. But if he fails to capture the 1,237 votes needed for a first-ballot victory, delegates become uncommitted and are free to support whomever they choose.